PRODUCT DESCRIPTION
Fits: 273 - 340, 4.0000" Stroke, Internal Balanced
Rear Main Seal Style:
2-piece
Engine Stroke (in):
4.000 in.
Crankshaft Material:
Forged 4340 steel
Engine Balance:
Internal
Lightened:
No
Requires Narrow Bearings:
Yes
Rod Bearings Included:
No
Main Bearings Included:
No
Crankshaft Snout Style:
Standard
Quantity:
Sold individually.
These forged 4340 steel crankshafts from Eagle Specialty Products are great for high performance applications. They feature non-twist forging, go through a multi-stage heat-treatment process, and are stress-relieved and shot-peened. These cranks are X-rayed, magnafluxed, and sonic-tested, so you know you're getting a top-quality piece. Each crankshaft has chamfered oil holes for improved oiling, a .125 in. radius on rod and main journals for increased strength, and the journals are precision-ground and micro-polished to less than 5 R.A. A target bob weight of +/- 2 percent greatly reduces balancing time.